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Tomato plant leave colour
I have three cordon tomato plants, all sowed and grew the same time with same compost; with the lovely weather in South East, I put them out yesterday and today but brought them back in overnight.
I've fed them weak solution seaweed extract yesterday and sprayed some on them on Saturday
However I noticed change on colour on one of the plant, the changes is only on two of the top branches.
Does anyone know what this is and possible remedy?
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Badly need potting on - those pots are tiny for the size of plant. They'll have used up all the nutrients by now.
Not sure why you're feeding them - or spraying them? If you've sprayed the foliage, that's probably the reason for discolouration too. That or cold wind. They really don't need anything but watering until they set fruit.
I live in west central Scotland - not where that photo is...
Thank you fairygirl, they are in 15cm pot at the moment. I've reported them 3 times since sowing, and they are not showing signs of root bound. I will be growing them in 45cm pots outside. Is this the right time to transplant them?
I read on one of the forums that seaweed extract helps to strengthen the plant.
If they're going outside, i'd wait a few weeks. You need decent night time temps for them. You'd only set them back if you put them outside now. It's always a case of getting the timing right. I usually sow in 3 inch pots, then repot into about 6 or inch pots, then into the final size of about 12 to 14 inches. Unless you have a greenhouse, it's difficult to keep plants going until they can go outside. Too long in a warm environment makes them a bit spindly, and they're less able to withstand outdoor conditions.
I'd give them another week, at most, in those pots and then get them into a final one. If you put them outside, make sure they're quite sheltered, and only do so for a few hours. Wind can dry them out and damage them as much as sun. The weather's been a bit tricky this year - hot then cold - which makes it harder for growing less hardy plants of any type. They'll be fine though
I live in west central Scotland - not where that photo is...